Duttine



A. DUTTINE BAG IOCK April 20, 1954 Fil ed Aug. 5 1951 .H0/9M D u frm/5,.

INVENTOR.

Patented Apr. 20, i 1954 UNITED STATES TENT OFFICE Claims priority,application Germany August 4, 1950 4 Claims.

This invention relates Yto a mortise lock for pouches, briefcases,trunks or similar receptacles.

Locks of this type usually comprise a lower part including va loop orstaple rising from a base plate, while the upper part is formed by atongue or strap adapted to be inserted under the staple, the said strapbeing provided with a locking member which can be depressed against theaction of a spring and which underlies the staple after the strap hasbeen pushed under the staple. It is also known to provide in the strapof such a lock a control member which, by means of a key, can be movedfrom an inoperative position into an operative position under theiniiuence of the locking member, thus preventing the locking member,usually designed as a push plate, from being depressed. It has also beenproposed to provide the insert strap with two depressable lockingmembers arranged on both sides of the strap and adapted to be pressedinto the latter. However, to release these locking members, two fingersmust be used.

The present invention concerns a new construction for a mortise lockwith two mutually independent locking members adapted to be pressed intothe strap by one finger against the action of a spring, and which can belocked against depression by means of a key. That is to say, the lockaccording to the present invention comprises va strap adapted to beinserted under a staple of the lower part of the lock with two mutuallyindependent locking members capable of being depressed against theaction of a spring, and a control member, actuated by a key, for the twolocking members, the latter being constituted by ribs adapted to bedepressed through slots in the cover plate of the upper side of thestrap, the said ribs converging after the fashion of a V in the insertdirection of the strap. Thus, to open the lock, the ribs can easily bedepressed with a single linger. The control member consists preferablyof a small plate rockably mounted on the base plate of the insert strapand provided with two upwardly bent tongues which, in one end positionof the small plate, move under the locking ribs thus preventing thelatter from being pressed into the strap.

The invention is hereinafter explained more in detail, reference beinghad to the accompanying drawing, in which:

'Figure l is a plan view of the new insert strap.

Figure 2 is a cross-section along line II-II of Figure 1.

Figures 3 and 4 are detail diagrammatic plan views showing the baseplate of the strap with the control plate in the inoperative and theoperative position, respectively.

`The insert strap consists, in known manner, of a base plate 3 providedwith attaching iiaps I, 2, and cover plate i provided with the bent edge55 which overlaps a corresponding edge portion 5 on the plate 3. Thecover plate has two longitudinal slots l converging in the insertdirection after the fashion of a V and in which are provided ribs 8which serve as locking members. Ribs 8 are rockable about a bar axis 9supported by edge E o1 cover plate 4. The rocking ends of the ribs areprovided with noses IB which limit the passage of the ribs 8 throughslots 1.

Pin II on base plate 3 supports a control plate I2 provided with twoupward bent tongues I3. The construction of plate l2 and of tongues I3is such that in one end position of the control plate i2, tongues I3will be outside the path oi depression of locking members 3 (Figure 3),whereas in the other end position they come to rest under the lookingmembers (Figure 4), with the result that it will be impossible todepress the locking members B.

Base plate 3 has a pressed-in projection lli to which correspond twonotches I5 on Control plate I2. These notches are arranged in such a waythat in either one of the end positions of control plate I2, one of thetwo notches I5 engages projection I4, thus preventing any undesiredrocking motion on the part of the control plate.

A spring IS is led around bar axis 9. Ends Il of said spring extend intothe two locking members 8, whereas its mid-section I t bears against thecontrol plate I2.

A lock cylinder l 9 for a key is provided in suitable recesses betweenbase plate 3 and cover plate #i of the insert strap. Control plate l2has an opening 2l) in which engages the bit of a key inserted incylinder IS. Depending on the direction of rotation, the said bit, inknown manner, moves the control plate from the ineffective into theeffective locking position, and vice versa.

I claim:

l. A bag lock, comprising, a strap adapted to be inserted under thestaple of the mating portion of the lock, said strap including a baseplate and a cover plate with edge flanges and having slots in theportion between the edge flanges, mutually independent depressablelocking meinbers hinged to the inner side of the cover plate adjacentthe slots therein, springs for urging the free ends of the membersoutwardly of the cover plate, a control plate pivotally carried by thebase and having remote from its pivot axis a pair of offset tonguesspaced apart a distance equal to that of the contiguous portions of thelocking members, and key operated means for shifting the control plateto bring the tongues thereof into and out of the path of the depressablelocking members, each tongue when in the path of a locking member beingdisposed between same and the base plate.

2. A bag lock according to claim 1, wherein the control plate and baseplate at one side of the pivot for the control plate are provided withinterengaging friction elements to hold the plate in locking orunlocking position.

3. A bag lock according to claim 1, wherein the slots and lockingmembers are angularly disposed and converge in the direction of the endof the strap which is insertable under the mating portion of the lock.

4. A bag lock comprising a strap adapted to be inserted under the stapleof the mating portion of the lock, said strap including a base plate anda cover plate having slots, mutually independent depressable lockingmembers hinged to the inner side of the cover plate adjacent the slotstherein, springs for urging the free ends of the members outwardly ofthe cover plate, a

control plate pivotally carried by the base and having remote from itspivot axis a pair of oiset tongues spaced lapart a distance equal tothat of the contiguous portions of the locking members, each of saidsprings for the depressable locking members including a portion reactingagainst the pivoted control plate to urge same toward the base plate,and key operated means for shifting the control plate to bring thetongues thereof into and out of the path of the depressable lockingmembers.

References Cited in the file ofV this patent UNITED STATES PATENTSNumber Name Date 597,669 Dillenbeck Jan. 18, 1898 1,334,852 GorowitzMar. 23, 1920 1,642,598 Widmer Sept. 13, 1927 1,732,408 Lewis et al.Oct. 22, 1929 1,818,442 Widmer Aug. 11, 1931 FOREIGN PATENTS NumberCountry Date 128,774 Austria July Y25, 1932 948,706 France Aug. 9, 1949

